Book-sawing machine



(No Model.) 2 Sheets-Sheet 1.

B. F. HUMPHREY.

-BooK SAWING MAGHNB. No. 285,133. Pateted Sept. 18, 1883.

WHIP G "Fmiwml uw w f (No Model.) n 2 Sheets-ShamJ 2.

B. F. HUMPHREY.

BOOK SAWING MACHINE.

No. 285,133. Patented Sept.,18, 1883. v

N. PETERS, mo-Limgnpmr. waminltm DIC.

'UNITED STATES Arena Finca. f

BENJAMIN F. I-IUMPHREY, OF BOSTON, MASSACHUSETTS.

BOOK-SAWING MACHINE.

SPECIFICATION forming part of Letters Patent No, 285,123, dated September 18, 1883- Application filed March 9, i883. (No model.)

To all -w-wm it may concern,.-

Be it known that I, BENJAMIN F. HUM- PHREY, of Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and Vuseful Improvement inBook- Sawing Machines, of which the following is a description .sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings,forming a part of this specification, in whichy Figure 1 is an isometrical perspective view of my improved machine; Fig. 2, a top plan view, Fig. 3, a view showing the method of attaching the saw; Fig. 4, a perspective view of a book afterhaving been sawed for binding, Fig. 5, a vertical transverse section taken on the line x, Fig. l; and Fig. 6, a top view-of the auxiliary or sliding table. t

Like letters or" reference indicate corresponding parts in the different iignres of thedrawf` ings.

My invention relates to that class of sawingl machines which are used by book-binders forl sawing the folds or backs oi' books, or for making the cuts to vreceive the twines or tapesi forming the bands used in binding; and it consists in a novel construction and arrangement of the parts, as hereinafter more fully set;- forth and claimed, by which a more desirable@ 4and effective article of this character is pro-,

duced than is now in ordinary use. The nature and operation of the improve-s ment will Vbe readily understood by all conversant with such matters from the following explanation, its eXtreme simplicity rendering an elaborate description unnecessary.

In the drawings, A represents the framework, B the treadle, and C the table` Mounted in the upper part of the framework and iitted to slide verticallyin the ways d d there is a frame or gate, D, carrying a gang of vertically-arranged saws, m. These saws are Asecured to stocks or carriers a by means of screws 15, inserted, respectively, at their upper and lower ends, the backs oi' the saws abutting against arabbet or shoulder, 16, their serrated edges being arranged to project in front of the stocks, as shown in Fig. 3. A horizontal T-shaped slot, f, is formed in l either end of the frame D, this slot opening outwardly, or toward the saws; and passing through each of the stocks a there is a bolt, b, provided at its outer end with a thumb screw or nut, g, and at its inner end with a head, i, the heads of the bolts being tted to workV in the T-shaped slots f, and the bodies of the boltspassing outwardly through said slots and through the stocks c, as best seenin Fig. 5.

Attached to one side of each of the saws m there is a vertical strip, c, these strips being made laterally-adj ustable on the saws by bolts and nuts h, the bolts passing through horizontal slots z, formed in the strips for this purpose. v

The treadle I3 is pivoted at its inner end to the horizontal rod H, mounted in the lower part of the frame A, and is connected to the frame D by means of the sliding pitman-rod J and oscillating pitman K, the upper end of the rod K being jointed at y to the `rod J, and at its lower end, at l, to the treadle B. The rod .I t

is provided with a coiled spring, L, the lower end of the spring resting on the cross-bar M of the frame A, and its upper end abutting against the lower side of the collet N, the collet being rendered vertically adjustable on the rod by the screw p in such manner as to obtain any desired tension on the spring, the obj ect of the spring being to elevate the treadle B and frame D when the machine is worked by foot-power. A joint, a, connects the'rod J with the frame D, the rod passing through a vertical hole in the bar M, and being provided beneath said bar with an adjustable stop-collet, R, carrying the rubber washer q.

A table, G, supported on the brackets 17, is

arranged in front of the saws, this table carry-- 9o ing an auxiliary table, 1S, which is tted to slide horizontally on the ways 19, and slotted at its inner edge, 20, to receive the saws m. The table Gis provided with adjustable stops 2l, against which the shoulders 22 on the auX- iliary table strike to prevent it from coming into contact with the saws, the gages being also designed to determine the depth of the cuts in the book.

The stocks or carriers may be provided with either one or two saws each, in accordance IOO with the work being done, but it is preferable to have but one saw attached to the outer holder in the gang, as these make the kettleband cuts r, which are usually somewhat sep arated from the body-cuts t in the back of the book.

In the use of myimprovement for light work the gage-strips o are iii-st adjusted on the saws m by means vof the nuts and bolts 7L being brought forward toward the teeth or moved back toward the backs of the saws, in accorda-nce with the depth of the cuts to be made in the back of the book. After the gage-strips have been properly adj usted ,the saws carrying the strips are next adjusted in the frame or gate D by means ofthe nuts and bolts g b, being spaced in accordance with the location of the cuts to be made in' the back of the book, or, for instance, as shown in Fig. 4, the outer saws in the'gang making the kettle-band or end cuts, 1', and the central saws the bodycuts t. adjusted, as described, the auxiliary table 1S is removed, and the folds composing the book E are inserted between two clamps or boards, fw, and placed on the table C, the book projecting slightly from between the clamps at their inner edges, both of the tables being cut out to enable the clamps to be grasped firmly in the hands ol` the workman ruiming the machine, as seen at T in Fig. l. The foot of the workman is then placed on the trcadle B, and the treadle worked to give a vertical reciprocating movement to the saws, the book being at the same time i'ed or pushed forward until it strikes the gage-strips fu, and the cuts o' tare made in a manner which will be readily obvious without a more explicit description.

Vhen the machine is used on heavy work, the auxiliary table 18 is employed, the strips c being set back out of the way or removedV entirely, andthe stops 2l used to gage the cut of the saws.

Two vertically-arranged stops, 2l, are securedto the inner edge ofthe auxiliary table,` against which the work is jogged7 or the; folds of the book adjusted preparatory to saw-r` ing the cuts, as this part of the process can- VYnot be readily performed on heavy work without injuring thesaws when thc saws are used as gages for jogging or adjusting the folds, asA in light work. A gage, I), is also attached tol the auxiliarytable, and made adjustable thereon by the screws 25, a similar gage (not shown) being used on the table C when the table 1S is. removed.

It will bc obvious that the treadle may bef dispensed with and the machine driven by` power, if desired, and for this purpose I have' provided the hanger Q, in which to mount a shaft, which may be connected in any suitable manner with the rod J.

lVhen the saws have been properlyV It will also be obvious that any number of the saws m may be employed, and that the gages c or stops 2l may be set to govern the depth of the cuts as desired.

I do not coniine myself to making the saws laterally adjustable in the frame D by means of the slots f, stocks a, and nuts and bolts gb, as this may be accomplished by other means. Neither do I confine myself to attaching the gages e directly to the saws, although I deem this preferable, as they clamp and stiffen them and enable the machine to perform its work in a more perfect manner.

Having thus explained my invention, Ywhat I claim is'-Y l. The improved book-sawing machine herein described, the same consisting ofthe frame A, provided with the table C and ways d, the frame D, mounted in said ways and provided with the slots f, the saws m, secured to the stocks a, and provided with the adjustable gages n and nuts and bolts g b, the heads of said bolts working in the slots f, and the treadle B, rods J K, and spring L, all con! structed,combined, and arranged to operate substantially as set forth.

2. In a book-sawing machine, two or more laterally-adjustable saws mounted in a frame or gate and adapted to receive vertical reciprocating movements, a gage or gages for regulating the depth of the cuts to be made in the back of the book, and a table on which the book or folds ot' the book is supported while being sawcd, in combination with means, substantially as described, for giving vertical reciprocating movements to the saws, substantially as described.

3. In a book-sawing machine, the gages o, attached to and rendered adjustable on the saws mf, substantially as set forth.

4. In a book-sawing machine, the frame or gate D, provided with the slots f, in combination with the stocks c, nuts and bolts g I), saws m, and operative mechanism, substantially as described.

5. The combination of a gang of saws, means for reciprocating the same, and a book-holding table provided on one side with a series ot' open slots adapted to receive the saws, and on the other side with a recess to enable the workman to readily manipulate the book-clamps, substantially as described.

6. In a book-sawing machine, the stops 2l, in combination with the table C, auxiliary table 1S, and saws m, substantially as and for the purpose set forth.v

BENJ. F. IIUMPI-IREY.

IIO 

